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5b8bb4d7dd0aa514b8cd6c7cf89364330c5fa2d5
clang-p2996/lldb/source/Symbol/ClangASTContext.cpp
Enrico Granata 5d84a69731 This is a fairly bulky patch, but a lot of it involves rearranging existing code 
What it does:

- it introduces a concept of EncodingToType to the ObjCLanguageRuntime
  The ObjC runtime has a "type encoding" feature that describes types as strings
  The EncodingToType is a decoder for that format, making types out of type encoding strings
This feature already existed in some shape as we were using it to create method signatures out of the runtime, but this checkin extends the parser to support the full syntax, and moves things so that more parts of LLDB have access to this decoder

- it splits the ClassDescriptorV2 object to its own file, it was starting to grow too large

- it adds to the ClassDescriptor mechanism a notion of ivar storage; the ObjC runtime vends ivar information as well as method information
While ivar information is not ready for prime type (i.e. we don't want to add it to the runtime generated types for expression evaluator usage), there are potentially useful scenarios in which realizing ivar types could be useful. For now, the ClassDescriptor is going to hold ivar information directly. Existing code already allows describing ivars, this patch hooks those moving parts up so that one can actually ask a ClassDescriptor about ivars for the class it represents

and as a couple minor niceties:
- it makes it possible to retrieve the LLDB ClangASTContext that is associated to a clang::ASTContext
- it extends the ValueObject-to-ClassDescriptor API in the language runtime to deal correctly with base-class hierarchies

llvm-svn: 216026
2014-08-19 21:46:37 +00:00

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//===-- ClangASTContext.cpp -------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Symbol/ClangASTContext.h"
// C Includes
// C++ Includes
#include <string>
// Other libraries and framework includes
// Clang headers like to use NDEBUG inside of them to enable/disable debug
// related features using "#ifndef NDEBUG" preprocessor blocks to do one thing
// or another. This is bad because it means that if clang was built in release
// mode, it assumes that you are building in release mode which is not always
// the case. You can end up with functions that are defined as empty in header
// files when NDEBUG is not defined, and this can cause link errors with the
// clang .a files that you have since you might be missing functions in the .a
// file. So we have to define NDEBUG when including clang headers to avoid any
// mismatches. This is covered by rdar://problem/8691220
#if !defined(NDEBUG) && !defined(LLVM_NDEBUG_OFF)
#define LLDB_DEFINED_NDEBUG_FOR_CLANG
#define NDEBUG
// Need to include assert.h so it is as clang would expect it to be (disabled)
#include <assert.h>
#endif
#include "clang/AST/ASTContext.h"
#include "clang/AST/ASTImporter.h"
#include "clang/AST/Attr.h"
#include "clang/AST/CXXInheritance.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/RecordLayout.h"
#include "clang/AST/Type.h"
#include "clang/Basic/Builtins.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/FileSystemOptions.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Basic/TargetOptions.h"
#include "clang/Frontend/FrontendOptions.h"
#include "clang/Frontend/LangStandard.h"
#ifdef LLDB_DEFINED_NDEBUG_FOR_CLANG
#undef NDEBUG
#undef LLDB_DEFINED_NDEBUG_FOR_CLANG
// Need to re-include assert.h so it is as _we_ would expect it to be (enabled)
#include <assert.h>
#endif
#include "lldb/Core/ArchSpec.h"
#include "lldb/Core/dwarf.h"
#include "lldb/Core/Flags.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/RegularExpression.h"
#include "lldb/Core/UniqueCStringMap.h"
#include "lldb/Expression/ASTDumper.h"
#include "lldb/Symbol/ClangExternalASTSourceCommon.h"
#include "lldb/Symbol/VerifyDecl.h"
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/ObjCLanguageRuntime.h"
#include <stdio.h>
#include <mutex>
using namespace lldb;
using namespace lldb_private;
using namespace llvm;
using namespace clang;
typedef llvm::DenseMap<clang::ASTContext *, ClangASTContext*> ClangASTMap;
static ClangASTMap &
GetASTMap()
{
static ClangASTMap g_map;
return g_map;
}
clang::AccessSpecifier
ClangASTContext::ConvertAccessTypeToAccessSpecifier (AccessType access)
{
switch (access)
{
default: break;
case eAccessNone: return AS_none;
case eAccessPublic: return AS_public;
case eAccessPrivate: return AS_private;
case eAccessProtected: return AS_protected;
}
return AS_none;
}
static void
ParseLangArgs
(
LangOptions &Opts,
InputKind IK
)
{
// FIXME: Cleanup per-file based stuff.
// Set some properties which depend solely on the input kind; it would be nice
// to move these to the language standard, and have the driver resolve the
// input kind + language standard.
if (IK == IK_Asm) {
Opts.AsmPreprocessor = 1;
} else if (IK == IK_ObjC ||
IK == IK_ObjCXX ||
IK == IK_PreprocessedObjC ||
IK == IK_PreprocessedObjCXX) {
Opts.ObjC1 = Opts.ObjC2 = 1;
}
LangStandard::Kind LangStd = LangStandard::lang_unspecified;
if (LangStd == LangStandard::lang_unspecified) {
// Based on the base language, pick one.
switch (IK) {
case IK_None:
case IK_AST:
case IK_LLVM_IR:
assert (!"Invalid input kind!");
case IK_OpenCL:
LangStd = LangStandard::lang_opencl;
break;
case IK_CUDA:
LangStd = LangStandard::lang_cuda;
break;
case IK_Asm:
case IK_C:
case IK_PreprocessedC:
case IK_ObjC:
case IK_PreprocessedObjC:
LangStd = LangStandard::lang_gnu99;
break;
case IK_CXX:
case IK_PreprocessedCXX:
case IK_ObjCXX:
case IK_PreprocessedObjCXX:
LangStd = LangStandard::lang_gnucxx98;
break;
}
}
const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
Opts.LineComment = Std.hasLineComments();
Opts.C99 = Std.isC99();
Opts.CPlusPlus = Std.isCPlusPlus();
Opts.CPlusPlus11 = Std.isCPlusPlus11();
Opts.Digraphs = Std.hasDigraphs();
Opts.GNUMode = Std.isGNUMode();
Opts.GNUInline = !Std.isC99();
Opts.HexFloats = Std.hasHexFloats();
Opts.ImplicitInt = Std.hasImplicitInt();
Opts.WChar = true;
// OpenCL has some additional defaults.
if (LangStd == LangStandard::lang_opencl) {
Opts.OpenCL = 1;
Opts.AltiVec = 1;
Opts.CXXOperatorNames = 1;
Opts.LaxVectorConversions = 1;
}
// OpenCL and C++ both have bool, true, false keywords.
Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
// if (Opts.CPlusPlus)
// Opts.CXXOperatorNames = !Args.hasArg(OPT_fno_operator_names);
//
// if (Args.hasArg(OPT_fobjc_gc_only))
// Opts.setGCMode(LangOptions::GCOnly);
// else if (Args.hasArg(OPT_fobjc_gc))
// Opts.setGCMode(LangOptions::HybridGC);
//
// if (Args.hasArg(OPT_print_ivar_layout))
// Opts.ObjCGCBitmapPrint = 1;
//
// if (Args.hasArg(OPT_faltivec))
// Opts.AltiVec = 1;
//
// if (Args.hasArg(OPT_pthread))
// Opts.POSIXThreads = 1;
//
// llvm::StringRef Vis = getLastArgValue(Args, OPT_fvisibility,
// "default");
// if (Vis == "default")
Opts.setValueVisibilityMode(DefaultVisibility);
// else if (Vis == "hidden")
// Opts.setVisibilityMode(LangOptions::Hidden);
// else if (Vis == "protected")
// Opts.setVisibilityMode(LangOptions::Protected);
// else
// Diags.Report(diag::err_drv_invalid_value)
// << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis;
// Opts.OverflowChecking = Args.hasArg(OPT_ftrapv);
// Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
// is specified, or -std is set to a conforming mode.
Opts.Trigraphs = !Opts.GNUMode;
// if (Args.hasArg(OPT_trigraphs))
// Opts.Trigraphs = 1;
//
// Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
// OPT_fno_dollars_in_identifiers,
// !Opts.AsmPreprocessor);
// Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
// Opts.Microsoft = Args.hasArg(OPT_fms_extensions);
// Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
// if (Args.hasArg(OPT_fno_lax_vector_conversions))
// Opts.LaxVectorConversions = 0;
// Opts.Exceptions = Args.hasArg(OPT_fexceptions);
// Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
// Opts.Blocks = Args.hasArg(OPT_fblocks);
// Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char);
// Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar);
// Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
// Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
// Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
// Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
// Opts.AccessControl = Args.hasArg(OPT_faccess_control);
// Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
// Opts.MathErrno = !Args.hasArg(OPT_fno_math_errno);
// Opts.InstantiationDepth = getLastArgIntValue(Args, OPT_ftemplate_depth, 99,
// Diags);
// Opts.NeXTRuntime = !Args.hasArg(OPT_fgnu_runtime);
// Opts.ObjCConstantStringClass = getLastArgValue(Args,
// OPT_fconstant_string_class);
// Opts.ObjCNonFragileABI = Args.hasArg(OPT_fobjc_nonfragile_abi);
// Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior);
// Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
// Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
// Opts.Static = Args.hasArg(OPT_static_define);
Opts.OptimizeSize = 0;
// FIXME: Eliminate this dependency.
// unsigned Opt =
// Args.hasArg(OPT_Os) ? 2 : getLastArgIntValue(Args, OPT_O, 0, Diags);
// Opts.Optimize = Opt != 0;
unsigned Opt = 0;
// This is the __NO_INLINE__ define, which just depends on things like the
// optimization level and -fno-inline, not actually whether the backend has
// inlining enabled.
//
// FIXME: This is affected by other options (-fno-inline).
Opts.NoInlineDefine = !Opt;
// unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
// switch (SSP) {
// default:
// Diags.Report(diag::err_drv_invalid_value)
// << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
// break;
// case 0: Opts.setStackProtectorMode(LangOptions::SSPOff); break;
// case 1: Opts.setStackProtectorMode(LangOptions::SSPOn); break;
// case 2: Opts.setStackProtectorMode(LangOptions::SSPReq); break;
// }
}
ClangASTContext::ClangASTContext (const char *target_triple) :
m_target_triple(),
m_ast_ap(),
m_language_options_ap(),
m_source_manager_ap(),
m_diagnostics_engine_ap(),
m_target_options_rp(),
m_target_info_ap(),
m_identifier_table_ap(),
m_selector_table_ap(),
m_builtins_ap(),
m_callback_tag_decl (nullptr),
m_callback_objc_decl (nullptr),
m_callback_baton (nullptr),
m_pointer_byte_size (0)
{
if (target_triple && target_triple[0])
SetTargetTriple (target_triple);
}
//----------------------------------------------------------------------
// Destructor
//----------------------------------------------------------------------
ClangASTContext::~ClangASTContext()
{
if (m_ast_ap.get())
{
GetASTMap().erase(m_ast_ap.get());
}
m_builtins_ap.reset();
m_selector_table_ap.reset();
m_identifier_table_ap.reset();
m_target_info_ap.reset();
m_target_options_rp.reset();
m_diagnostics_engine_ap.reset();
m_source_manager_ap.reset();
m_language_options_ap.reset();
m_ast_ap.reset();
}
void
ClangASTContext::Clear()
{
m_ast_ap.reset();
m_language_options_ap.reset();
m_source_manager_ap.reset();
m_diagnostics_engine_ap.reset();
m_target_options_rp.reset();
m_target_info_ap.reset();
m_identifier_table_ap.reset();
m_selector_table_ap.reset();
m_builtins_ap.reset();
m_pointer_byte_size = 0;
}
const char *
ClangASTContext::GetTargetTriple ()
{
return m_target_triple.c_str();
}
void
ClangASTContext::SetTargetTriple (const char *target_triple)
{
Clear();
m_target_triple.assign(target_triple);
}
void
ClangASTContext::SetArchitecture (const ArchSpec &arch)
{
SetTargetTriple(arch.GetTriple().str().c_str());
}
bool
ClangASTContext::HasExternalSource ()
{
ASTContext *ast = getASTContext();
if (ast)
return ast->getExternalSource () != nullptr;
return false;
}
void
ClangASTContext::SetExternalSource (llvm::IntrusiveRefCntPtr<ExternalASTSource> &ast_source_ap)
{
ASTContext *ast = getASTContext();
if (ast)
{
ast->setExternalSource (ast_source_ap);
ast->getTranslationUnitDecl()->setHasExternalLexicalStorage(true);
//ast->getTranslationUnitDecl()->setHasExternalVisibleStorage(true);
}
}
void
ClangASTContext::RemoveExternalSource ()
{
ASTContext *ast = getASTContext();
if (ast)
{
llvm::IntrusiveRefCntPtr<ExternalASTSource> empty_ast_source_ap;
ast->setExternalSource (empty_ast_source_ap);
ast->getTranslationUnitDecl()->setHasExternalLexicalStorage(false);
//ast->getTranslationUnitDecl()->setHasExternalVisibleStorage(false);
}
}
ASTContext *
ClangASTContext::getASTContext()
{
if (m_ast_ap.get() == nullptr)
{
m_ast_ap.reset(new ASTContext (*getLanguageOptions(),
*getSourceManager(),
*getIdentifierTable(),
*getSelectorTable(),
*getBuiltinContext()));
m_ast_ap->InitBuiltinTypes(*getTargetInfo());
if ((m_callback_tag_decl || m_callback_objc_decl) && m_callback_baton)
{
m_ast_ap->getTranslationUnitDecl()->setHasExternalLexicalStorage();
//m_ast_ap->getTranslationUnitDecl()->setHasExternalVisibleStorage();
}
m_ast_ap->getDiagnostics().setClient(getDiagnosticConsumer(), false);
GetASTMap().insert(std::make_pair(m_ast_ap.get(), this));
}
return m_ast_ap.get();
}
ClangASTContext*
ClangASTContext::GetASTContext (clang::ASTContext* ast)
{
ClangASTContext *clang_ast = GetASTMap().lookup(ast);
return clang_ast;
}
Builtin::Context *
ClangASTContext::getBuiltinContext()
{
if (m_builtins_ap.get() == nullptr)
m_builtins_ap.reset (new Builtin::Context());
return m_builtins_ap.get();
}
IdentifierTable *
ClangASTContext::getIdentifierTable()
{
if (m_identifier_table_ap.get() == nullptr)
m_identifier_table_ap.reset(new IdentifierTable (*ClangASTContext::getLanguageOptions(), nullptr));
return m_identifier_table_ap.get();
}
LangOptions *
ClangASTContext::getLanguageOptions()
{
if (m_language_options_ap.get() == nullptr)
{
m_language_options_ap.reset(new LangOptions());
ParseLangArgs(*m_language_options_ap, IK_ObjCXX);
// InitializeLangOptions(*m_language_options_ap, IK_ObjCXX);
}
return m_language_options_ap.get();
}
SelectorTable *
ClangASTContext::getSelectorTable()
{
if (m_selector_table_ap.get() == nullptr)
m_selector_table_ap.reset (new SelectorTable());
return m_selector_table_ap.get();
}
clang::FileManager *
ClangASTContext::getFileManager()
{
if (m_file_manager_ap.get() == nullptr)
{
clang::FileSystemOptions file_system_options;
m_file_manager_ap.reset(new clang::FileManager(file_system_options));
}
return m_file_manager_ap.get();
}
clang::SourceManager *
ClangASTContext::getSourceManager()
{
if (m_source_manager_ap.get() == nullptr)
m_source_manager_ap.reset(new clang::SourceManager(*getDiagnosticsEngine(), *getFileManager()));
return m_source_manager_ap.get();
}
clang::DiagnosticsEngine *
ClangASTContext::getDiagnosticsEngine()
{
if (m_diagnostics_engine_ap.get() == nullptr)
{
llvm::IntrusiveRefCntPtr<DiagnosticIDs> diag_id_sp(new DiagnosticIDs());
m_diagnostics_engine_ap.reset(new DiagnosticsEngine(diag_id_sp, new DiagnosticOptions()));
}
return m_diagnostics_engine_ap.get();
}
class NullDiagnosticConsumer : public DiagnosticConsumer
{
public:
NullDiagnosticConsumer ()
{
m_log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS);
}
void HandleDiagnostic (DiagnosticsEngine::Level DiagLevel, const Diagnostic &info)
{
if (m_log)
{
llvm::SmallVector<char, 32> diag_str(10);
info.FormatDiagnostic(diag_str);
diag_str.push_back('\0');
m_log->Printf("Compiler diagnostic: %s\n", diag_str.data());
}
}
DiagnosticConsumer *clone (DiagnosticsEngine &Diags) const
{
return new NullDiagnosticConsumer ();
}
private:
Log * m_log;
};
DiagnosticConsumer *
ClangASTContext::getDiagnosticConsumer()
{
if (m_diagnostic_consumer_ap.get() == nullptr)
m_diagnostic_consumer_ap.reset(new NullDiagnosticConsumer);
return m_diagnostic_consumer_ap.get();
}
std::shared_ptr<TargetOptions> &
ClangASTContext::getTargetOptions() {
if (m_target_options_rp.get() == nullptr && !m_target_triple.empty())
{
m_target_options_rp = std::make_shared<TargetOptions>();
if (m_target_options_rp.get() != nullptr)
m_target_options_rp->Triple = m_target_triple;
}
return m_target_options_rp;
}
TargetInfo *
ClangASTContext::getTargetInfo()
{
// target_triple should be something like "x86_64-apple-macosx"
if (m_target_info_ap.get() == nullptr && !m_target_triple.empty())
m_target_info_ap.reset (TargetInfo::CreateTargetInfo(*getDiagnosticsEngine(), getTargetOptions()));
return m_target_info_ap.get();
}
#pragma mark Basic Types
static inline bool
QualTypeMatchesBitSize(const uint64_t bit_size, ASTContext *ast, QualType qual_type)
{
uint64_t qual_type_bit_size = ast->getTypeSize(qual_type);
if (qual_type_bit_size == bit_size)
return true;
return false;
}
ClangASTType
ClangASTContext::GetBuiltinTypeForEncodingAndBitSize (Encoding encoding, uint32_t bit_size)
{
return ClangASTContext::GetBuiltinTypeForEncodingAndBitSize (getASTContext(), encoding, bit_size);
}
ClangASTType
ClangASTContext::GetBuiltinTypeForEncodingAndBitSize (ASTContext *ast, Encoding encoding, uint32_t bit_size)
{
if (!ast)
return ClangASTType();
switch (encoding)
{
case eEncodingInvalid:
if (QualTypeMatchesBitSize (bit_size, ast, ast->VoidPtrTy))
return ClangASTType (ast, ast->VoidPtrTy.getAsOpaquePtr());
break;
case eEncodingUint:
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedCharTy))
return ClangASTType (ast, ast->UnsignedCharTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedShortTy))
return ClangASTType (ast, ast->UnsignedShortTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedIntTy))
return ClangASTType (ast, ast->UnsignedIntTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedLongTy))
return ClangASTType (ast, ast->UnsignedLongTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedLongLongTy))
return ClangASTType (ast, ast->UnsignedLongLongTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedInt128Ty))
return ClangASTType (ast, ast->UnsignedInt128Ty.getAsOpaquePtr());
break;
case eEncodingSint:
if (QualTypeMatchesBitSize (bit_size, ast, ast->CharTy))
return ClangASTType (ast, ast->CharTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->ShortTy))
return ClangASTType (ast, ast->ShortTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->IntTy))
return ClangASTType (ast, ast->IntTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->LongTy))
return ClangASTType (ast, ast->LongTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->LongLongTy))
return ClangASTType (ast, ast->LongLongTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->Int128Ty))
return ClangASTType (ast, ast->Int128Ty.getAsOpaquePtr());
break;
case eEncodingIEEE754:
if (QualTypeMatchesBitSize (bit_size, ast, ast->FloatTy))
return ClangASTType (ast, ast->FloatTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->DoubleTy))
return ClangASTType (ast, ast->DoubleTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->LongDoubleTy))
return ClangASTType (ast, ast->LongDoubleTy.getAsOpaquePtr());
break;
case eEncodingVector:
// Sanity check that bit_size is a multiple of 8's.
if (bit_size && !(bit_size & 0x7u))
return ClangASTType (ast, ast->getExtVectorType (ast->UnsignedCharTy, bit_size/8).getAsOpaquePtr());
break;
}
return ClangASTType();
}
lldb::BasicType
ClangASTContext::GetBasicTypeEnumeration (const ConstString &name)
{
if (name)
{
typedef UniqueCStringMap<lldb::BasicType> TypeNameToBasicTypeMap;
static TypeNameToBasicTypeMap g_type_map;
static std::once_flag g_once_flag;
std::call_once(g_once_flag, [](){
// "void"
g_type_map.Append(ConstString("void").GetCString(), eBasicTypeVoid);
// "char"
g_type_map.Append(ConstString("char").GetCString(), eBasicTypeChar);
g_type_map.Append(ConstString("signed char").GetCString(), eBasicTypeSignedChar);
g_type_map.Append(ConstString("unsigned char").GetCString(), eBasicTypeUnsignedChar);
g_type_map.Append(ConstString("wchar_t").GetCString(), eBasicTypeWChar);
g_type_map.Append(ConstString("signed wchar_t").GetCString(), eBasicTypeSignedWChar);
g_type_map.Append(ConstString("unsigned wchar_t").GetCString(), eBasicTypeUnsignedWChar);
// "short"
g_type_map.Append(ConstString("short").GetCString(), eBasicTypeShort);
g_type_map.Append(ConstString("short int").GetCString(), eBasicTypeShort);
g_type_map.Append(ConstString("unsigned short").GetCString(), eBasicTypeUnsignedShort);
g_type_map.Append(ConstString("unsigned short int").GetCString(), eBasicTypeUnsignedShort);
// "int"
g_type_map.Append(ConstString("int").GetCString(), eBasicTypeInt);
g_type_map.Append(ConstString("signed int").GetCString(), eBasicTypeInt);
g_type_map.Append(ConstString("unsigned int").GetCString(), eBasicTypeUnsignedInt);
g_type_map.Append(ConstString("unsigned").GetCString(), eBasicTypeUnsignedInt);
// "long"
g_type_map.Append(ConstString("long").GetCString(), eBasicTypeLong);
g_type_map.Append(ConstString("long int").GetCString(), eBasicTypeLong);
g_type_map.Append(ConstString("unsigned long").GetCString(), eBasicTypeUnsignedLong);
g_type_map.Append(ConstString("unsigned long int").GetCString(), eBasicTypeUnsignedLong);
// "long long"
g_type_map.Append(ConstString("long long").GetCString(), eBasicTypeLongLong);
g_type_map.Append(ConstString("long long int").GetCString(), eBasicTypeLongLong);
g_type_map.Append(ConstString("unsigned long long").GetCString(), eBasicTypeUnsignedLongLong);
g_type_map.Append(ConstString("unsigned long long int").GetCString(), eBasicTypeUnsignedLongLong);
// "int128"
g_type_map.Append(ConstString("__int128_t").GetCString(), eBasicTypeInt128);
g_type_map.Append(ConstString("__uint128_t").GetCString(), eBasicTypeUnsignedInt128);
// Miscellaneous
g_type_map.Append(ConstString("bool").GetCString(), eBasicTypeBool);
g_type_map.Append(ConstString("float").GetCString(), eBasicTypeFloat);
g_type_map.Append(ConstString("double").GetCString(), eBasicTypeDouble);
g_type_map.Append(ConstString("long double").GetCString(), eBasicTypeLongDouble);
g_type_map.Append(ConstString("id").GetCString(), eBasicTypeObjCID);
g_type_map.Append(ConstString("SEL").GetCString(), eBasicTypeObjCSel);
g_type_map.Append(ConstString("nullptr").GetCString(), eBasicTypeNullPtr);
g_type_map.Sort();
});
return g_type_map.Find(name.GetCString(), eBasicTypeInvalid);
}
return eBasicTypeInvalid;
}
ClangASTType
ClangASTContext::GetBasicType (ASTContext *ast, const ConstString &name)
{
if (ast)
{
lldb::BasicType basic_type = ClangASTContext::GetBasicTypeEnumeration (name);
return ClangASTContext::GetBasicType (ast, basic_type);
}
return ClangASTType();
}
uint32_t
ClangASTContext::GetPointerByteSize ()
{
if (m_pointer_byte_size == 0)
m_pointer_byte_size = GetBasicType(lldb::eBasicTypeVoid).GetPointerType().GetByteSize();
return m_pointer_byte_size;
}
ClangASTType
ClangASTContext::GetBasicType (lldb::BasicType basic_type)
{
return GetBasicType (getASTContext(), basic_type);
}
ClangASTType
ClangASTContext::GetBasicType (ASTContext *ast, lldb::BasicType basic_type)
{
if (ast)
{
clang_type_t clang_type = nullptr;
switch (basic_type)
{
case eBasicTypeInvalid:
case eBasicTypeOther:
break;
case eBasicTypeVoid:
clang_type = ast->VoidTy.getAsOpaquePtr();
break;
case eBasicTypeChar:
clang_type = ast->CharTy.getAsOpaquePtr();
break;
case eBasicTypeSignedChar:
clang_type = ast->SignedCharTy.getAsOpaquePtr();
break;
case eBasicTypeUnsignedChar:
clang_type = ast->UnsignedCharTy.getAsOpaquePtr();
break;
case eBasicTypeWChar:
clang_type = ast->getWCharType().getAsOpaquePtr();
break;
case eBasicTypeSignedWChar:
clang_type = ast->getSignedWCharType().getAsOpaquePtr();
break;
case eBasicTypeUnsignedWChar:
clang_type = ast->getUnsignedWCharType().getAsOpaquePtr();
break;
case eBasicTypeChar16:
clang_type = ast->Char16Ty.getAsOpaquePtr();
break;
case eBasicTypeChar32:
clang_type = ast->Char32Ty.getAsOpaquePtr();
break;
case eBasicTypeShort:
clang_type = ast->ShortTy.getAsOpaquePtr();
break;
case eBasicTypeUnsignedShort:
clang_type = ast->UnsignedShortTy.getAsOpaquePtr();
break;
case eBasicTypeInt:
clang_type = ast->IntTy.getAsOpaquePtr();
break;
case eBasicTypeUnsignedInt:
clang_type = ast->UnsignedIntTy.getAsOpaquePtr();
break;
case eBasicTypeLong:
clang_type = ast->LongTy.getAsOpaquePtr();
break;
case eBasicTypeUnsignedLong:
clang_type = ast->UnsignedLongTy.getAsOpaquePtr();
break;
case eBasicTypeLongLong:
clang_type = ast->LongLongTy.getAsOpaquePtr();
break;
case eBasicTypeUnsignedLongLong:
clang_type = ast->UnsignedLongLongTy.getAsOpaquePtr();
break;
case eBasicTypeInt128:
clang_type = ast->Int128Ty.getAsOpaquePtr();
break;
case eBasicTypeUnsignedInt128:
clang_type = ast->UnsignedInt128Ty.getAsOpaquePtr();
break;
case eBasicTypeBool:
clang_type = ast->BoolTy.getAsOpaquePtr();
break;
case eBasicTypeHalf:
clang_type = ast->HalfTy.getAsOpaquePtr();
break;
case eBasicTypeFloat:
clang_type = ast->FloatTy.getAsOpaquePtr();
break;
case eBasicTypeDouble:
clang_type = ast->DoubleTy.getAsOpaquePtr();
break;
case eBasicTypeLongDouble:
clang_type = ast->LongDoubleTy.getAsOpaquePtr();
break;
case eBasicTypeFloatComplex:
clang_type = ast->FloatComplexTy.getAsOpaquePtr();
break;
case eBasicTypeDoubleComplex:
clang_type = ast->DoubleComplexTy.getAsOpaquePtr();
break;
case eBasicTypeLongDoubleComplex:
clang_type = ast->LongDoubleComplexTy.getAsOpaquePtr();
break;
case eBasicTypeObjCID:
clang_type = ast->getObjCIdType().getAsOpaquePtr();
break;
case eBasicTypeObjCClass:
clang_type = ast->getObjCClassType().getAsOpaquePtr();
break;
case eBasicTypeObjCSel:
clang_type = ast->getObjCSelType().getAsOpaquePtr();
break;
case eBasicTypeNullPtr:
clang_type = ast->NullPtrTy.getAsOpaquePtr();
break;
}
if (clang_type)
return ClangASTType (ast, clang_type);
}
return ClangASTType();
}
ClangASTType
ClangASTContext::GetBuiltinTypeForDWARFEncodingAndBitSize (const char *type_name, uint32_t dw_ate, uint32_t bit_size)
{
ASTContext *ast = getASTContext();
#define streq(a,b) strcmp(a,b) == 0
assert (ast != nullptr);
if (ast)
{
switch (dw_ate)
{
default:
break;
case DW_ATE_address:
if (QualTypeMatchesBitSize (bit_size, ast, ast->VoidPtrTy))
return ClangASTType (ast, ast->VoidPtrTy.getAsOpaquePtr());
break;
case DW_ATE_boolean:
if (QualTypeMatchesBitSize (bit_size, ast, ast->BoolTy))
return ClangASTType (ast, ast->BoolTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedCharTy))
return ClangASTType (ast, ast->UnsignedCharTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedShortTy))
return ClangASTType (ast, ast->UnsignedShortTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedIntTy))
return ClangASTType (ast, ast->UnsignedIntTy.getAsOpaquePtr());
break;
case DW_ATE_lo_user:
// This has been seen to mean DW_AT_complex_integer
if (type_name)
{
if (::strstr(type_name, "complex"))
{
ClangASTType complex_int_clang_type = GetBuiltinTypeForDWARFEncodingAndBitSize ("int", DW_ATE_signed, bit_size/2);
return ClangASTType (ast, ast->getComplexType (complex_int_clang_type.GetQualType()).getAsOpaquePtr());
}
}
break;
case DW_ATE_complex_float:
if (QualTypeMatchesBitSize (bit_size, ast, ast->FloatComplexTy))
return ClangASTType (ast, ast->FloatComplexTy.getAsOpaquePtr());
else if (QualTypeMatchesBitSize (bit_size, ast, ast->DoubleComplexTy))
return ClangASTType (ast, ast->DoubleComplexTy.getAsOpaquePtr());
else if (QualTypeMatchesBitSize (bit_size, ast, ast->LongDoubleComplexTy))
return ClangASTType (ast, ast->LongDoubleComplexTy.getAsOpaquePtr());
else
{
ClangASTType complex_float_clang_type = GetBuiltinTypeForDWARFEncodingAndBitSize ("float", DW_ATE_float, bit_size/2);
return ClangASTType (ast, ast->getComplexType (complex_float_clang_type.GetQualType()).getAsOpaquePtr());
}
break;
case DW_ATE_float:
if (QualTypeMatchesBitSize (bit_size, ast, ast->FloatTy))
return ClangASTType (ast, ast->FloatTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->DoubleTy))
return ClangASTType (ast, ast->DoubleTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->LongDoubleTy))
return ClangASTType (ast, ast->LongDoubleTy.getAsOpaquePtr());
break;
case DW_ATE_signed:
if (type_name)
{
if (streq(type_name, "wchar_t") &&
QualTypeMatchesBitSize (bit_size, ast, ast->WCharTy))
return ClangASTType (ast, ast->WCharTy.getAsOpaquePtr());
if (streq(type_name, "void") &&
QualTypeMatchesBitSize (bit_size, ast, ast->VoidTy))
return ClangASTType (ast, ast->VoidTy.getAsOpaquePtr());
if (strstr(type_name, "long long") &&
QualTypeMatchesBitSize (bit_size, ast, ast->LongLongTy))
return ClangASTType (ast, ast->LongLongTy.getAsOpaquePtr());
if (strstr(type_name, "long") &&
QualTypeMatchesBitSize (bit_size, ast, ast->LongTy))
return ClangASTType (ast, ast->LongTy.getAsOpaquePtr());
if (strstr(type_name, "short") &&
QualTypeMatchesBitSize (bit_size, ast, ast->ShortTy))
return ClangASTType (ast, ast->ShortTy.getAsOpaquePtr());
if (strstr(type_name, "char"))
{
if (QualTypeMatchesBitSize (bit_size, ast, ast->CharTy))
return ClangASTType (ast, ast->CharTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->SignedCharTy))
return ClangASTType (ast, ast->SignedCharTy.getAsOpaquePtr());
}
if (strstr(type_name, "int"))
{
if (QualTypeMatchesBitSize (bit_size, ast, ast->IntTy))
return ClangASTType (ast, ast->IntTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->Int128Ty))
return ClangASTType (ast, ast->Int128Ty.getAsOpaquePtr());
}
}
// We weren't able to match up a type name, just search by size
if (QualTypeMatchesBitSize (bit_size, ast, ast->CharTy))
return ClangASTType (ast, ast->CharTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->ShortTy))
return ClangASTType (ast, ast->ShortTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->IntTy))
return ClangASTType (ast, ast->IntTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->LongTy))
return ClangASTType (ast, ast->LongTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->LongLongTy))
return ClangASTType (ast, ast->LongLongTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->Int128Ty))
return ClangASTType (ast, ast->Int128Ty.getAsOpaquePtr());
break;
case DW_ATE_signed_char:
if (type_name)
{
if (streq(type_name, "signed char"))
{
if (QualTypeMatchesBitSize (bit_size, ast, ast->SignedCharTy))
return ClangASTType (ast, ast->SignedCharTy.getAsOpaquePtr());
}
}
if (QualTypeMatchesBitSize (bit_size, ast, ast->CharTy))
return ClangASTType (ast, ast->CharTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->SignedCharTy))
return ClangASTType (ast, ast->SignedCharTy.getAsOpaquePtr());
break;
case DW_ATE_unsigned:
if (type_name)
{
if (strstr(type_name, "long long"))
{
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedLongLongTy))
return ClangASTType (ast, ast->UnsignedLongLongTy.getAsOpaquePtr());
}
else if (strstr(type_name, "long"))
{
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedLongTy))
return ClangASTType (ast, ast->UnsignedLongTy.getAsOpaquePtr());
}
else if (strstr(type_name, "short"))
{
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedShortTy))
return ClangASTType (ast, ast->UnsignedShortTy.getAsOpaquePtr());
}
else if (strstr(type_name, "char"))
{
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedCharTy))
return ClangASTType (ast, ast->UnsignedCharTy.getAsOpaquePtr());
}
else if (strstr(type_name, "int"))
{
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedIntTy))
return ClangASTType (ast, ast->UnsignedIntTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedInt128Ty))
return ClangASTType (ast, ast->UnsignedInt128Ty.getAsOpaquePtr());
}
}
// We weren't able to match up a type name, just search by size
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedCharTy))
return ClangASTType (ast, ast->UnsignedCharTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedShortTy))
return ClangASTType (ast, ast->UnsignedShortTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedIntTy))
return ClangASTType (ast, ast->UnsignedIntTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedLongTy))
return ClangASTType (ast, ast->UnsignedLongTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedLongLongTy))
return ClangASTType (ast, ast->UnsignedLongLongTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedInt128Ty))
return ClangASTType (ast, ast->UnsignedInt128Ty.getAsOpaquePtr());
break;
case DW_ATE_unsigned_char:
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedCharTy))
return ClangASTType (ast, ast->UnsignedCharTy.getAsOpaquePtr());
if (QualTypeMatchesBitSize (bit_size, ast, ast->UnsignedShortTy))
return ClangASTType (ast, ast->UnsignedShortTy.getAsOpaquePtr());
break;
case DW_ATE_imaginary_float:
break;
case DW_ATE_UTF:
if (type_name)
{
if (streq(type_name, "char16_t"))
{
return ClangASTType (ast, ast->Char16Ty.getAsOpaquePtr());
}
else if (streq(type_name, "char32_t"))
{
return ClangASTType (ast, ast->Char32Ty.getAsOpaquePtr());
}
}
break;
}
}
// This assert should fire for anything that we don't catch above so we know
// to fix any issues we run into.
if (type_name)
{
Host::SystemLog (Host::eSystemLogError, "error: need to add support for DW_TAG_base_type '%s' encoded with DW_ATE = 0x%x, bit_size = %u\n", type_name, dw_ate, bit_size);
}
else
{
Host::SystemLog (Host::eSystemLogError, "error: need to add support for DW_TAG_base_type encoded with DW_ATE = 0x%x, bit_size = %u\n", dw_ate, bit_size);
}
return ClangASTType ();
}
ClangASTType
ClangASTContext::GetUnknownAnyType(clang::ASTContext *ast)
{
if (ast)
return ClangASTType (ast, ast->UnknownAnyTy.getAsOpaquePtr());
return ClangASTType();
}
ClangASTType
ClangASTContext::GetCStringType (bool is_const)
{
ASTContext *ast = getASTContext();
QualType char_type(ast->CharTy);
if (is_const)
char_type.addConst();
return ClangASTType (ast, ast->getPointerType(char_type).getAsOpaquePtr());
}
clang::DeclContext *
ClangASTContext::GetTranslationUnitDecl (clang::ASTContext *ast)
{
return ast->getTranslationUnitDecl();
}
ClangASTType
ClangASTContext::CopyType (ASTContext *dst_ast,
ClangASTType src)
{
FileSystemOptions file_system_options;
ASTContext *src_ast = src.GetASTContext();
FileManager file_manager (file_system_options);
ASTImporter importer(*dst_ast, file_manager,
*src_ast, file_manager,
false);
QualType dst (importer.Import(src.GetQualType()));
return ClangASTType (dst_ast, dst.getAsOpaquePtr());
}
clang::Decl *
ClangASTContext::CopyDecl (ASTContext *dst_ast,
ASTContext *src_ast,
clang::Decl *source_decl)
{
FileSystemOptions file_system_options;
FileManager file_manager (file_system_options);
ASTImporter importer(*dst_ast, file_manager,
*src_ast, file_manager,
false);
return importer.Import(source_decl);
}
bool
ClangASTContext::AreTypesSame (ClangASTType type1,
ClangASTType type2,
bool ignore_qualifiers)
{
ASTContext *ast = type1.GetASTContext();
if (ast != type2.GetASTContext())
return false;
if (type1.GetOpaqueQualType() == type2.GetOpaqueQualType())
return true;
QualType type1_qual = type1.GetQualType();
QualType type2_qual = type2.GetQualType();
if (ignore_qualifiers)
{
type1_qual = type1_qual.getUnqualifiedType();
type2_qual = type2_qual.getUnqualifiedType();
}
return ast->hasSameType (type1_qual, type2_qual);
}
ClangASTType
ClangASTContext::GetTypeForDecl (TagDecl *decl)
{
// No need to call the getASTContext() accessor (which can create the AST
// if it isn't created yet, because we can't have created a decl in this
// AST if our AST didn't already exist...
ASTContext *ast = m_ast_ap.get();
if (ast)
return ClangASTType (ast, ast->getTagDeclType(decl).getAsOpaquePtr());
return ClangASTType();
}
ClangASTType
ClangASTContext::GetTypeForDecl (ObjCInterfaceDecl *decl)
{
// No need to call the getASTContext() accessor (which can create the AST
// if it isn't created yet, because we can't have created a decl in this
// AST if our AST didn't already exist...
ASTContext *ast = m_ast_ap.get();
if (ast)
return ClangASTType (ast, ast->getObjCInterfaceType(decl).getAsOpaquePtr());
return ClangASTType();
}
#pragma mark Structure, Unions, Classes
ClangASTType
ClangASTContext::CreateRecordType (DeclContext *decl_ctx,
AccessType access_type,
const char *name,
int kind,
LanguageType language,
ClangASTMetadata *metadata)
{
ASTContext *ast = getASTContext();
assert (ast != nullptr);
if (decl_ctx == nullptr)
decl_ctx = ast->getTranslationUnitDecl();
if (language == eLanguageTypeObjC || language == eLanguageTypeObjC_plus_plus)
{
bool isForwardDecl = true;
bool isInternal = false;
return CreateObjCClass (name, decl_ctx, isForwardDecl, isInternal, metadata);
}
// NOTE: Eventually CXXRecordDecl will be merged back into RecordDecl and
// we will need to update this code. I was told to currently always use
// the CXXRecordDecl class since we often don't know from debug information
// if something is struct or a class, so we default to always use the more
// complete definition just in case.
bool is_anonymous = (!name) || (!name[0]);
CXXRecordDecl *decl = CXXRecordDecl::Create (*ast,
(TagDecl::TagKind)kind,
decl_ctx,
SourceLocation(),
SourceLocation(),
is_anonymous ? nullptr : &ast->Idents.get(name));
if (is_anonymous)
decl->setAnonymousStructOrUnion(true);
if (decl)
{
if (metadata)
SetMetadata(ast, decl, *metadata);
if (access_type != eAccessNone)
decl->setAccess (ConvertAccessTypeToAccessSpecifier (access_type));
if (decl_ctx)
decl_ctx->addDecl (decl);
return ClangASTType(ast, ast->getTagDeclType(decl).getAsOpaquePtr());
}
return ClangASTType();
}
static TemplateParameterList *
CreateTemplateParameterList (ASTContext *ast,
const ClangASTContext::TemplateParameterInfos &template_param_infos,
llvm::SmallVector<NamedDecl *, 8> &template_param_decls)
{
const bool parameter_pack = false;
const bool is_typename = false;
const unsigned depth = 0;
const size_t num_template_params = template_param_infos.GetSize();
for (size_t i=0; i<num_template_params; ++i)
{
const char *name = template_param_infos.names[i];
IdentifierInfo *identifier_info = nullptr;
if (name && name[0])
identifier_info = &ast->Idents.get(name);
if (template_param_infos.args[i].getKind() == TemplateArgument::Integral)
{
template_param_decls.push_back (NonTypeTemplateParmDecl::Create (*ast,
ast->getTranslationUnitDecl(), // Is this the right decl context?, SourceLocation StartLoc,
SourceLocation(),
SourceLocation(),
depth,
i,
identifier_info,
template_param_infos.args[i].getIntegralType(),
parameter_pack,
nullptr));
}
else
{
template_param_decls.push_back (TemplateTypeParmDecl::Create (*ast,
ast->getTranslationUnitDecl(), // Is this the right decl context?
SourceLocation(),
SourceLocation(),
depth,
i,
identifier_info,
is_typename,
parameter_pack));
}
}
TemplateParameterList *template_param_list = TemplateParameterList::Create (*ast,
SourceLocation(),
SourceLocation(),
&template_param_decls.front(),
template_param_decls.size(),
SourceLocation());
return template_param_list;
}
clang::FunctionTemplateDecl *
ClangASTContext::CreateFunctionTemplateDecl (clang::DeclContext *decl_ctx,
clang::FunctionDecl *func_decl,
const char *name,
const TemplateParameterInfos &template_param_infos)
{
// /// \brief Create a function template node.
ASTContext *ast = getASTContext();
llvm::SmallVector<NamedDecl *, 8> template_param_decls;
TemplateParameterList *template_param_list = CreateTemplateParameterList (ast,
template_param_infos,
template_param_decls);
FunctionTemplateDecl *func_tmpl_decl = FunctionTemplateDecl::Create (*ast,
decl_ctx,
func_decl->getLocation(),
func_decl->getDeclName(),
template_param_list,
func_decl);
for (size_t i=0, template_param_decl_count = template_param_decls.size();
i < template_param_decl_count;
++i)
{
// TODO: verify which decl context we should put template_param_decls into..
template_param_decls[i]->setDeclContext (func_decl);
}
return func_tmpl_decl;
}
void
ClangASTContext::CreateFunctionTemplateSpecializationInfo (FunctionDecl *func_decl,
clang::FunctionTemplateDecl *func_tmpl_decl,
const TemplateParameterInfos &infos)
{
TemplateArgumentList template_args (TemplateArgumentList::OnStack,
infos.args.data(),
infos.args.size());
func_decl->setFunctionTemplateSpecialization (func_tmpl_decl,
&template_args,
nullptr);
}
ClassTemplateDecl *
ClangASTContext::CreateClassTemplateDecl (DeclContext *decl_ctx,
lldb::AccessType access_type,
const char *class_name,
int kind,
const TemplateParameterInfos &template_param_infos)
{
ASTContext *ast = getASTContext();
ClassTemplateDecl *class_template_decl = nullptr;
if (decl_ctx == nullptr)
decl_ctx = ast->getTranslationUnitDecl();
IdentifierInfo &identifier_info = ast->Idents.get(class_name);
DeclarationName decl_name (&identifier_info);
clang::DeclContext::lookup_result result = decl_ctx->lookup(decl_name);
for (NamedDecl *decl : result)
{
class_template_decl = dyn_cast<clang::ClassTemplateDecl>(decl);
if (class_template_decl)
return class_template_decl;
}
llvm::SmallVector<NamedDecl *, 8> template_param_decls;
TemplateParameterList *template_param_list = CreateTemplateParameterList (ast,
template_param_infos,
template_param_decls);
CXXRecordDecl *template_cxx_decl = CXXRecordDecl::Create (*ast,
(TagDecl::TagKind)kind,
decl_ctx, // What decl context do we use here? TU? The actual decl context?
SourceLocation(),
SourceLocation(),
&identifier_info);
for (size_t i=0, template_param_decl_count = template_param_decls.size();
i < template_param_decl_count;
++i)
{
template_param_decls[i]->setDeclContext (template_cxx_decl);
}
// With templated classes, we say that a class is templated with
// specializations, but that the bare class has no functions.
//template_cxx_decl->startDefinition();
//template_cxx_decl->completeDefinition();
class_template_decl = ClassTemplateDecl::Create (*ast,
decl_ctx, // What decl context do we use here? TU? The actual decl context?
SourceLocation(),
decl_name,
template_param_list,
template_cxx_decl,
nullptr);
if (class_template_decl)
{
if (access_type != eAccessNone)
class_template_decl->setAccess (ConvertAccessTypeToAccessSpecifier (access_type));
//if (TagDecl *ctx_tag_decl = dyn_cast<TagDecl>(decl_ctx))
// CompleteTagDeclarationDefinition(GetTypeForDecl(ctx_tag_decl));
decl_ctx->addDecl (class_template_decl);
#ifdef LLDB_CONFIGURATION_DEBUG
VerifyDecl(class_template_decl);
#endif
}
return class_template_decl;
}
ClassTemplateSpecializationDecl *
ClangASTContext::CreateClassTemplateSpecializationDecl (DeclContext *decl_ctx,
ClassTemplateDecl *class_template_decl,
int kind,
const TemplateParameterInfos &template_param_infos)
{
ASTContext *ast = getASTContext();
ClassTemplateSpecializationDecl *class_template_specialization_decl = ClassTemplateSpecializationDecl::Create (*ast,
(TagDecl::TagKind)kind,
decl_ctx,
SourceLocation(),
SourceLocation(),
class_template_decl,
&template_param_infos.args.front(),
template_param_infos.args.size(),
nullptr);
class_template_specialization_decl->setSpecializationKind(TSK_ExplicitSpecialization);
return class_template_specialization_decl;
}
ClangASTType
ClangASTContext::CreateClassTemplateSpecializationType (ClassTemplateSpecializationDecl *class_template_specialization_decl)
{
if (class_template_specialization_decl)
{
ASTContext *ast = getASTContext();
if (ast)
return ClangASTType(ast, ast->getTagDeclType(class_template_specialization_decl).getAsOpaquePtr());
}
return ClangASTType();
}
static inline bool
check_op_param (uint32_t op_kind, bool unary, bool binary, uint32_t num_params)
{
// Special-case call since it can take any number of operands
if(op_kind == OO_Call)
return true;
// The parameter count doesn't include "this"
if (num_params == 0)
return unary;
if (num_params == 1)
return binary;
else
return false;
}
bool
ClangASTContext::CheckOverloadedOperatorKindParameterCount (uint32_t op_kind, uint32_t num_params)
{
switch (op_kind)
{
default:
break;
// C++ standard allows any number of arguments to new/delete
case OO_New:
case OO_Array_New:
case OO_Delete:
case OO_Array_Delete:
return true;
}
#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) case OO_##Name: return check_op_param (op_kind, Unary, Binary, num_params);
switch (op_kind)
{
#include "clang/Basic/OperatorKinds.def"
default: break;
}
return false;
}
clang::AccessSpecifier
ClangASTContext::UnifyAccessSpecifiers (clang::AccessSpecifier lhs, clang::AccessSpecifier rhs)
{
clang::AccessSpecifier ret = lhs;
// Make the access equal to the stricter of the field and the nested field's access
switch (ret)
{
case clang::AS_none:
break;
case clang::AS_private:
break;
case clang::AS_protected:
if (rhs == AS_private)
ret = AS_private;
break;
case clang::AS_public:
ret = rhs;
break;
}
return ret;
}
bool
ClangASTContext::FieldIsBitfield (FieldDecl* field, uint32_t& bitfield_bit_size)
{
return FieldIsBitfield(getASTContext(), field, bitfield_bit_size);
}
bool
ClangASTContext::FieldIsBitfield
(
ASTContext *ast,
FieldDecl* field,
uint32_t& bitfield_bit_size
)
{
if (ast == nullptr || field == nullptr)
return false;
if (field->isBitField())
{
Expr* bit_width_expr = field->getBitWidth();
if (bit_width_expr)
{
llvm::APSInt bit_width_apsint;
if (bit_width_expr->isIntegerConstantExpr(bit_width_apsint, *ast))
{
bitfield_bit_size = bit_width_apsint.getLimitedValue(UINT32_MAX);
return true;
}
}
}
return false;
}
bool
ClangASTContext::RecordHasFields (const RecordDecl *record_decl)
{
if (record_decl == nullptr)
return false;
if (!record_decl->field_empty())
return true;
// No fields, lets check this is a CXX record and check the base classes
const CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl);
if (cxx_record_decl)
{
CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
for (base_class = cxx_record_decl->bases_begin(), base_class_end = cxx_record_decl->bases_end();
base_class != base_class_end;
++base_class)
{
const CXXRecordDecl *base_class_decl = cast<CXXRecordDecl>(base_class->getType()->getAs<RecordType>()->getDecl());
if (RecordHasFields(base_class_decl))
return true;
}
}
return false;
}
#pragma mark Objective C Classes
ClangASTType
ClangASTContext::CreateObjCClass
(
const char *name,
DeclContext *decl_ctx,
bool isForwardDecl,
bool isInternal,
ClangASTMetadata *metadata
)
{
ASTContext *ast = getASTContext();
assert (ast != nullptr);
assert (name && name[0]);
if (decl_ctx == nullptr)
decl_ctx = ast->getTranslationUnitDecl();
ObjCInterfaceDecl *decl = ObjCInterfaceDecl::Create (*ast,
decl_ctx,
SourceLocation(),
&ast->Idents.get(name),
nullptr,
SourceLocation(),
/*isForwardDecl,*/
isInternal);
if (decl && metadata)
SetMetadata(ast, decl, *metadata);
return ClangASTType (ast, ast->getObjCInterfaceType(decl));
}
static inline bool
BaseSpecifierIsEmpty (const CXXBaseSpecifier *b)
{
return ClangASTContext::RecordHasFields(b->getType()->getAsCXXRecordDecl()) == false;
}
uint32_t
ClangASTContext::GetNumBaseClasses (const CXXRecordDecl *cxx_record_decl, bool omit_empty_base_classes)
{
uint32_t num_bases = 0;
if (cxx_record_decl)
{
if (omit_empty_base_classes)
{
CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
for (base_class = cxx_record_decl->bases_begin(), base_class_end = cxx_record_decl->bases_end();
base_class != base_class_end;
++base_class)
{
// Skip empty base classes
if (omit_empty_base_classes)
{
if (BaseSpecifierIsEmpty (base_class))
continue;
}
++num_bases;
}
}
else
num_bases = cxx_record_decl->getNumBases();
}
return num_bases;
}
#pragma mark Namespace Declarations
NamespaceDecl *
ClangASTContext::GetUniqueNamespaceDeclaration (const char *name, DeclContext *decl_ctx)
{
NamespaceDecl *namespace_decl = nullptr;
ASTContext *ast = getASTContext();
TranslationUnitDecl *translation_unit_decl = ast->getTranslationUnitDecl ();
if (decl_ctx == nullptr)
decl_ctx = translation_unit_decl;
if (name)
{
IdentifierInfo &identifier_info = ast->Idents.get(name);
DeclarationName decl_name (&identifier_info);
clang::DeclContext::lookup_result result = decl_ctx->lookup(decl_name);
for (NamedDecl *decl : result)
{
namespace_decl = dyn_cast<clang::NamespaceDecl>(decl);
if (namespace_decl)
return namespace_decl;
}
namespace_decl = NamespaceDecl::Create(*ast,
decl_ctx,
false,
SourceLocation(),
SourceLocation(),
&identifier_info,
nullptr);
decl_ctx->addDecl (namespace_decl);
}
else
{
if (decl_ctx == translation_unit_decl)
{
namespace_decl = translation_unit_decl->getAnonymousNamespace();
if (namespace_decl)
return namespace_decl;
namespace_decl = NamespaceDecl::Create(*ast,
decl_ctx,
false,
SourceLocation(),
SourceLocation(),
nullptr,
nullptr);
translation_unit_decl->setAnonymousNamespace (namespace_decl);
translation_unit_decl->addDecl (namespace_decl);
assert (namespace_decl == translation_unit_decl->getAnonymousNamespace());
}
else
{
NamespaceDecl *parent_namespace_decl = cast<NamespaceDecl>(decl_ctx);
if (parent_namespace_decl)
{
namespace_decl = parent_namespace_decl->getAnonymousNamespace();
if (namespace_decl)
return namespace_decl;
namespace_decl = NamespaceDecl::Create(*ast,
decl_ctx,
false,
SourceLocation(),
SourceLocation(),
nullptr,
nullptr);
parent_namespace_decl->setAnonymousNamespace (namespace_decl);
parent_namespace_decl->addDecl (namespace_decl);
assert (namespace_decl == parent_namespace_decl->getAnonymousNamespace());
}
else
{
// BAD!!!
}
}
if (namespace_decl)
{
// If we make it here, we are creating the anonymous namespace decl
// for the first time, so we need to do the using directive magic
// like SEMA does
UsingDirectiveDecl* using_directive_decl = UsingDirectiveDecl::Create (*ast,
decl_ctx,
SourceLocation(),
SourceLocation(),
NestedNameSpecifierLoc(),
SourceLocation(),
namespace_decl,
decl_ctx);
using_directive_decl->setImplicit();
decl_ctx->addDecl(using_directive_decl);
}
}
#ifdef LLDB_CONFIGURATION_DEBUG
VerifyDecl(namespace_decl);
#endif
return namespace_decl;
}
#pragma mark Function Types
FunctionDecl *
ClangASTContext::CreateFunctionDeclaration (DeclContext *decl_ctx,
const char *name,
const ClangASTType &function_clang_type,
int storage,
bool is_inline)
{
FunctionDecl *func_decl = nullptr;
ASTContext *ast = getASTContext();
if (decl_ctx == nullptr)
decl_ctx = ast->getTranslationUnitDecl();
const bool hasWrittenPrototype = true;
const bool isConstexprSpecified = false;
if (name && name[0])
{
func_decl = FunctionDecl::Create (*ast,
decl_ctx,
SourceLocation(),
SourceLocation(),
DeclarationName (&ast->Idents.get(name)),
function_clang_type.GetQualType(),
nullptr,
(FunctionDecl::StorageClass)storage,
is_inline,
hasWrittenPrototype,
isConstexprSpecified);
}
else
{
func_decl = FunctionDecl::Create (*ast,
decl_ctx,
SourceLocation(),
SourceLocation(),
DeclarationName (),
function_clang_type.GetQualType(),
nullptr,
(FunctionDecl::StorageClass)storage,
is_inline,
hasWrittenPrototype,
isConstexprSpecified);
}
if (func_decl)
decl_ctx->addDecl (func_decl);
#ifdef LLDB_CONFIGURATION_DEBUG
VerifyDecl(func_decl);
#endif
return func_decl;
}
ClangASTType
ClangASTContext::CreateFunctionType (ASTContext *ast,
const ClangASTType& result_type,
const ClangASTType *args,
unsigned num_args,
bool is_variadic,
unsigned type_quals)
{
assert (ast != nullptr);
std::vector<QualType> qual_type_args;
for (unsigned i=0; i<num_args; ++i)
qual_type_args.push_back (args[i].GetQualType());
// TODO: Detect calling convention in DWARF?
FunctionProtoType::ExtProtoInfo proto_info;
proto_info.Variadic = is_variadic;
proto_info.ExceptionSpec = EST_None;
proto_info.TypeQuals = type_quals;
proto_info.RefQualifier = RQ_None;
return ClangASTType (ast, ast->getFunctionType (result_type.GetQualType(),
qual_type_args,
proto_info).getAsOpaquePtr());
}
ParmVarDecl *
ClangASTContext::CreateParameterDeclaration (const char *name, const ClangASTType &param_type, int storage)
{
ASTContext *ast = getASTContext();
assert (ast != nullptr);
return ParmVarDecl::Create(*ast,
ast->getTranslationUnitDecl(),
SourceLocation(),
SourceLocation(),
name && name[0] ? &ast->Idents.get(name) : nullptr,
param_type.GetQualType(),
nullptr,
(VarDecl::StorageClass)storage,
nullptr);
}
void
ClangASTContext::SetFunctionParameters (FunctionDecl *function_decl, ParmVarDecl **params, unsigned num_params)
{
if (function_decl)
function_decl->setParams (ArrayRef<ParmVarDecl*>(params, num_params));
}
#pragma mark Array Types
ClangASTType
ClangASTContext::CreateArrayType (const ClangASTType &element_type,
size_t element_count,
bool is_vector)
{
if (element_type.IsValid())
{
ASTContext *ast = getASTContext();
assert (ast != nullptr);
if (is_vector)
{
return ClangASTType (ast, ast->getExtVectorType(element_type.GetQualType(), element_count).getAsOpaquePtr());
}
else
{
llvm::APInt ap_element_count (64, element_count);
if (element_count == 0)
{
return ClangASTType (ast, ast->getIncompleteArrayType (element_type.GetQualType(),
ArrayType::Normal,
0).getAsOpaquePtr());
}
else
{
return ClangASTType (ast, ast->getConstantArrayType (element_type.GetQualType(),
ap_element_count,
ArrayType::Normal,
0).getAsOpaquePtr());
}
}
}
return ClangASTType();
}
#pragma mark Enumeration Types
ClangASTType
ClangASTContext::CreateEnumerationType
(
const char *name,
DeclContext *decl_ctx,
const Declaration &decl,
const ClangASTType &integer_clang_type
)
{
// TODO: Do something intelligent with the Declaration object passed in
// like maybe filling in the SourceLocation with it...
ASTContext *ast = getASTContext();
// TODO: ask about these...
// const bool IsScoped = false;
// const bool IsFixed = false;
EnumDecl *enum_decl = EnumDecl::Create (*ast,
decl_ctx,
SourceLocation(),
SourceLocation(),
name && name[0] ? &ast->Idents.get(name) : nullptr,
nullptr,
false, // IsScoped
false, // IsScopedUsingClassTag
false); // IsFixed
if (enum_decl)
{
// TODO: check if we should be setting the promotion type too?
enum_decl->setIntegerType(integer_clang_type.GetQualType());
enum_decl->setAccess(AS_public); // TODO respect what's in the debug info
return ClangASTType (ast, ast->getTagDeclType(enum_decl).getAsOpaquePtr());
}
return ClangASTType();
}
// Disable this for now since I can't seem to get a nicely formatted float
// out of the APFloat class without just getting the float, double or quad
// and then using a formatted print on it which defeats the purpose. We ideally
// would like to get perfect string values for any kind of float semantics
// so we can support remote targets. The code below also requires a patch to
// llvm::APInt.
//bool
//ClangASTContext::ConvertFloatValueToString (ASTContext *ast, clang_type_t clang_type, const uint8_t* bytes, size_t byte_size, int apint_byte_order, std::string &float_str)
//{
// uint32_t count = 0;
// bool is_complex = false;
// if (ClangASTContext::IsFloatingPointType (clang_type, count, is_complex))
// {
// unsigned num_bytes_per_float = byte_size / count;
// unsigned num_bits_per_float = num_bytes_per_float * 8;
//
// float_str.clear();
// uint32_t i;
// for (i=0; i<count; i++)
// {
// APInt ap_int(num_bits_per_float, bytes + i * num_bytes_per_float, (APInt::ByteOrder)apint_byte_order);
// bool is_ieee = false;
// APFloat ap_float(ap_int, is_ieee);
// char s[1024];
// unsigned int hex_digits = 0;
// bool upper_case = false;
//
// if (ap_float.convertToHexString(s, hex_digits, upper_case, APFloat::rmNearestTiesToEven) > 0)
// {
// if (i > 0)
// float_str.append(", ");
// float_str.append(s);
// if (i == 1 && is_complex)
// float_str.append(1, 'i');
// }
// }
// return !float_str.empty();
// }
// return false;
//}
ClangASTType
ClangASTContext::GetIntTypeFromBitSize (clang::ASTContext *ast,
size_t bit_size, bool is_signed)
{
if (ast)
{
if (is_signed)
{
if (bit_size == ast->getTypeSize(ast->SignedCharTy))
return ClangASTType(ast, ast->SignedCharTy.getAsOpaquePtr());
if (bit_size == ast->getTypeSize(ast->ShortTy))
return ClangASTType(ast, ast->ShortTy.getAsOpaquePtr());
if (bit_size == ast->getTypeSize(ast->IntTy))
return ClangASTType(ast, ast->IntTy.getAsOpaquePtr());
if (bit_size == ast->getTypeSize(ast->LongTy))
return ClangASTType(ast, ast->LongTy.getAsOpaquePtr());
if (bit_size == ast->getTypeSize(ast->LongLongTy))
return ClangASTType(ast, ast->LongLongTy.getAsOpaquePtr());
if (bit_size == ast->getTypeSize(ast->Int128Ty))
return ClangASTType(ast, ast->Int128Ty.getAsOpaquePtr());
}
else
{
if (bit_size == ast->getTypeSize(ast->UnsignedCharTy))
return ClangASTType(ast, ast->UnsignedCharTy.getAsOpaquePtr());
if (bit_size == ast->getTypeSize(ast->UnsignedShortTy))
return ClangASTType(ast, ast->UnsignedShortTy.getAsOpaquePtr());
if (bit_size == ast->getTypeSize(ast->UnsignedIntTy))
return ClangASTType(ast, ast->UnsignedIntTy.getAsOpaquePtr());
if (bit_size == ast->getTypeSize(ast->UnsignedLongTy))
return ClangASTType(ast, ast->UnsignedLongTy.getAsOpaquePtr());
if (bit_size == ast->getTypeSize(ast->UnsignedLongLongTy))
return ClangASTType(ast, ast->UnsignedLongLongTy.getAsOpaquePtr());
if (bit_size == ast->getTypeSize(ast->UnsignedInt128Ty))
return ClangASTType(ast, ast->UnsignedInt128Ty.getAsOpaquePtr());
}
}
return ClangASTType();
}
ClangASTType
ClangASTContext::GetPointerSizedIntType (clang::ASTContext *ast, bool is_signed)
{
if (ast)
return GetIntTypeFromBitSize(ast, ast->getTypeSize(ast->VoidPtrTy), is_signed);
return ClangASTType();
}
ClangASTType
ClangASTContext::GetFloatTypeFromBitSize (clang::ASTContext *ast,
size_t bit_size)
{
if (ast)
{
if (bit_size == ast->getTypeSize(ast->FloatTy))
return ClangASTType(ast, ast->FloatTy.getAsOpaquePtr());
else if (bit_size == ast->getTypeSize(ast->DoubleTy))
return ClangASTType(ast, ast->DoubleTy.getAsOpaquePtr());
else if (bit_size == ast->getTypeSize(ast->LongDoubleTy))
return ClangASTType(ast, ast->LongDoubleTy.getAsOpaquePtr());
else if (bit_size == ast->getTypeSize(ast->HalfTy))
return ClangASTType(ast, ast->HalfTy.getAsOpaquePtr());
}
return ClangASTType();
}
bool
ClangASTContext::GetCompleteDecl (clang::ASTContext *ast,
clang::Decl *decl)
{
if (!decl)
return false;
ExternalASTSource *ast_source = ast->getExternalSource();
if (!ast_source)
return false;
if (clang::TagDecl *tag_decl = llvm::dyn_cast<clang::TagDecl>(decl))
{
if (tag_decl->isCompleteDefinition())
return true;
if (!tag_decl->hasExternalLexicalStorage())
return false;
ast_source->CompleteType(tag_decl);
return !tag_decl->getTypeForDecl()->isIncompleteType();
}
else if (clang::ObjCInterfaceDecl *objc_interface_decl = llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl))
{
if (objc_interface_decl->getDefinition())
return true;
if (!objc_interface_decl->hasExternalLexicalStorage())
return false;
ast_source->CompleteType(objc_interface_decl);
return !objc_interface_decl->getTypeForDecl()->isIncompleteType();
}
else
{
return false;
}
}
void
ClangASTContext::SetMetadataAsUserID (const void *object,
user_id_t user_id)
{
ClangASTMetadata meta_data;
meta_data.SetUserID (user_id);
SetMetadata (object, meta_data);
}
void
ClangASTContext::SetMetadata (clang::ASTContext *ast,
const void *object,
ClangASTMetadata &metadata)
{
ClangExternalASTSourceCommon *external_source =
static_cast<ClangExternalASTSourceCommon*>(ast->getExternalSource());
if (external_source)
external_source->SetMetadata(object, metadata);
}
ClangASTMetadata *
ClangASTContext::GetMetadata (clang::ASTContext *ast,
const void *object)
{
ClangExternalASTSourceCommon *external_source =
static_cast<ClangExternalASTSourceCommon*>(ast->getExternalSource());
if (external_source && external_source->HasMetadata(object))
return external_source->GetMetadata(object);
else
return nullptr;
}
clang::DeclContext *
ClangASTContext::GetAsDeclContext (clang::CXXMethodDecl *cxx_method_decl)
{
return llvm::dyn_cast<clang::DeclContext>(cxx_method_decl);
}
clang::DeclContext *
ClangASTContext::GetAsDeclContext (clang::ObjCMethodDecl *objc_method_decl)
{
return llvm::dyn_cast<clang::DeclContext>(objc_method_decl);
}
bool
ClangASTContext::GetClassMethodInfoForDeclContext (clang::DeclContext *decl_ctx,
lldb::LanguageType &language,
bool &is_instance_method,
ConstString &language_object_name)
{
language_object_name.Clear();
language = eLanguageTypeUnknown;
is_instance_method = false;
if (decl_ctx)
{
if (clang::CXXMethodDecl *method_decl = llvm::dyn_cast<clang::CXXMethodDecl>(decl_ctx))
{
if (method_decl->isStatic())
{
is_instance_method = false;
}
else
{
language_object_name.SetCString("this");
is_instance_method = true;
}
language = eLanguageTypeC_plus_plus;
return true;
}
else if (clang::ObjCMethodDecl *method_decl = llvm::dyn_cast<clang::ObjCMethodDecl>(decl_ctx))
{
// Both static and instance methods have a "self" object in objective C
language_object_name.SetCString("self");
if (method_decl->isInstanceMethod())
{
is_instance_method = true;
}
else
{
is_instance_method = false;
}
language = eLanguageTypeObjC;
return true;
}
else if (clang::FunctionDecl *function_decl = llvm::dyn_cast<clang::FunctionDecl>(decl_ctx))
{
ClangASTMetadata *metadata = GetMetadata (&decl_ctx->getParentASTContext(), function_decl);
if (metadata && metadata->HasObjectPtr())
{
language_object_name.SetCString (metadata->GetObjectPtrName());
language = eLanguageTypeObjC;
is_instance_method = true;
}
return true;
}
}
return false;
}
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